/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
  --bg:     #d9d2c4;
  --panel:  #cfc7b7;
  --dark:   #1f3b30;
  --dark-2: #2e4e40;
  --accent: #e46b2d;
  --green:  #3c6e5c;
  --beige:  #ebe4d6;
  --text:   #14231d;

  /* shared column widths — timeline & track rows must use same values */
  --col-label: 100px;
  --col-btns:  93px;
  --col-acts:  51px;
  --col-gap:   8px;
  --row-pad:   8px;

  /*
    Fixed left panel width:
    row-pad(8) + col-label(100) + col-gap(8) + col-btns(115) + col-gap(8) + col-acts(60) + row-pad(8) = 307px
  */
  --track-left-width: 276px;
}

* { box-sizing: border-box; user-select: none; }

html, body {
  margin: 0; padding: 0;
  width: 100vw; height: 100vh;
  overflow: hidden;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ── Viewport & Device frame ─────────────────────────────────────────────── */
#viewport {
  width: 100vw; height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.device {
  width: 1200px;
  height: 760px;
  background: var(--panel);
  border: 6px solid var(--dark);
  display: flex;
  flex-direction: column;
  padding: 16px 20px;
  gap: 8px;
  overflow: hidden;
}

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-shrink: 0;
}

.logo { display: flex; flex-direction: column; gap: 2px; text-transform: uppercase; letter-spacing: 2px; }
.logo .brand   { font-size: 36px; font-family: 'Ranchers', cursive; line-height: 1.2; color: #1F3B30; letter-spacing: 4px; }
.logo .subtitle{ font-size: 11px; font-family: "Segoe UI", "Helvetica Neue", sans-serif; color: #E46B2D; letter-spacing: 1px; }

.label { display: block; font-size: 10px; letter-spacing: 1px; color: var(--dark-2); }
.value { font-size: 14px; font-weight: 600; color: var(--dark); }

.transport { display: flex; gap: 8px; align-items: center; }

.transport-length {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--dark);
}

.transport-length-icon {
  width: 16px; height: 16px;
  flex-shrink: 0;
  color: var(--green);
}

.transport-length-input {
  width: 38px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--dark);
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  padding: 0;
  cursor: text;
  -moz-appearance: textfield;
}
.transport-length-input:focus { color: var(--accent); }
.transport-length-input::-webkit-outer-spin-button,
.transport-length-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.transport-length-s {
  font-size: 11px;
  color: var(--dark-2);
  font-weight: 600;
  margin-left: -2px;
}

.transport-timer {
  min-width: 90px;
  text-align: center;
  padding: 4px 10px;
  border: 2px solid var(--dark);
  background: #151f1b;
  color: #eafff4;
  font-size: 28px;
  font-family: 'DSEG7', monospace;
  letter-spacing: 3px;
  font-variant-numeric: tabular-nums;
  box-shadow: inset 0 0 0 2px rgba(255,149,0,0.2);
}

.transport-btn {
  width: 40px; height: 40px;
  border: 2px solid var(--dark);
  background: var(--beige);
  color: var(--dark);
  font-size: 16px;
  cursor: pointer;
}
.transport-btn.active { background: var(--accent); color: #fff; }

.sync-btn {
  padding: 0 10px; height: 40px;
  border: 2px solid var(--dark); background: var(--panel);
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
  cursor: pointer; color: var(--dark);
}
.sync-btn.active { background: #2ecc71; border-color: #27ae60; color: #fff; }

.io { display: flex; gap: 8px; }
.io-btn {
  padding: 6px 10px;
  border: 2px solid var(--dark);
  background: var(--panel);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
.io-btn.io-btn-icon {
  padding: 0;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--dark);
}
.io-btn.io-btn-icon svg { width: 16px; height: 16px; display: block; }
.io-btn.io-btn-icon:hover { background: var(--dark); color: var(--beige); }

#settings-toggle {
  font-size: 18px;
  padding: 2px 8px;
  line-height: 1;
}

/* ── EP-40 Panel ─────────────────────────────────────────────────────────── */
.ep40-panel {
  background: var(--dark);
  border: 2px solid var(--dark-2);
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}

.ep40-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.ep40-title { display: flex; align-items: center; gap: 7px; }

.ep40-brand  { font-size: 10px; font-weight: 700; letter-spacing: 2px; color: #eafff4; text-transform: uppercase; }
.ep40-status { font-size: 9px;  font-weight: 600; color: #666; letter-spacing: 1px; }

.ep40-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #444;
  border: 1px solid #666;
  flex-shrink: 0;
  transition: background 0.3s;
}
.ep40-dot.on { background: #4cff90; box-shadow: 0 0 5px #4cff90; }

.ep40-controls { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.ep40-actions { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.ep40-label    { font-size: 9px; color: #888; letter-spacing: 1px; text-transform: uppercase; }

.ep40-bpm-group {
  display: flex;
  align-items: stretch;
  gap: 4px;
}

.ep40-bpm-box {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 24px;
  padding: 2px 6px;
  background: #0c1a14;
  border: 1px solid #355d4f;
  transition: border-color 0.12s, box-shadow 0.12s, opacity 0.12s;
}

#ep40-bpm-out-box {
  display: none;
}

.ep40-bpm-box.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(228, 107, 45, 0.22);
}

.ep40-bpm-box.inactive {
  opacity: 0.72;
}

.ep40-bpm-tag {
  min-width: 18px;
  text-align: center;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #87a79b;
}

.ep40-bpm-input {
  width: 48px;
  background: transparent;
  border: none;
  color: #eafff4;
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 0;
  text-align: center;
  outline: none;
}

.ep40-bpm-display {
  min-width: 40px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.ep40-btn {
  padding: 3px 8px;
  border: 1px solid #3c6e5c;
  background: #1f3b30;
  color: #eafff4;
  font-size: 9px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s;
}
.ep40-btn:hover  { background: #2e5f4d; }
.ep40-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.ep40-panic             { border-color: #8b2020; color: #ff6b6b; }
.ep40-panic:hover       { background: #8b2020; color: #fff; }

.ep40-panel.collapsed .ep40-actions { display: none; }
.ep40-panel.collapsed .ep40-body { display: none; }
.ep40-body { display: flex; gap: 10px; align-items: flex-start; }

.ep40-pad-grid { display: flex; flex-direction: column; gap: 3px; flex-shrink: 0; }
.ep40-group-row{ display: flex; align-items: center; gap: 3px; }
.ep40-group-label { width: 12px; font-size: 9px; font-weight: 700; color: #4cff90; text-align: center; flex-shrink: 0; }

.ep40-pad {
  width: 24px; height: 18px;
  border: 1px solid #3c6e5c; background: #0c1a14; color: #6b9e84;
  font-size: 8px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.07s, color 0.07s;
}
.ep40-pad.active { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 0 5px var(--accent); }

.ep40-sidebar { flex: 1; display: flex; flex-direction: column; gap: 4px; min-width: 0; }

.ep40-audio-status {
  font-size: 9px; color: #6b9e84;
  background: #0c1a14; border: 1px solid #2e4e40;
  padding: 2px 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.ep40-probe-log {
  background: #0c1a14; border: 1px solid #2e4e40;
  padding: 3px 6px; height: 48px; overflow-y: auto;
  font-size: 8px; color: #6b9e84; font-family: monospace; line-height: 1.4;
}
.ep40-probe-log::-webkit-scrollbar { width: 4px; }
.ep40-probe-log::-webkit-scrollbar-thumb { background: #3c6e5c; }

.ep40-copy-btn {
  position: absolute; top: 3px; right: 3px;
  background: #1f3b30; border: 1px solid #3c6e5c;
  color: #4cff90; font-size: 11px; cursor: pointer;
  padding: 1px 5px; line-height: 1;
}
.ep40-copy-btn:hover { background: #3c6e5c; }

/* ── Main panel & tracks section ─────────────────────────────────────────── */
.main-panel {
  flex: 1;
  display: flex;
  min-height: 0;
}

.tracks-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 0;
  overflow: hidden;
}

.tracks-header {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  gap: 16px;
  padding-bottom: 6px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.tracks-toolbar-group {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.tracks-toolbar-group-view {
  margin-left: auto;
  justify-content: flex-end;
}

.toolbar-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 8px 7px;
  background: rgba(24, 54, 45, 0.05);
  border: 1px solid rgba(24, 54, 45, 0.16);
  border-radius: 6px;
}

.toolbar-label {
  margin: 0;
  font-size: 9px;
  line-height: 1;
}

.toolbar-input,
.toolbar-select {
  margin: 0;
}

.toolbar-follow {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 43px;
  padding: 0 10px;
  background: rgba(24, 54, 45, 0.05);
  border: 1px solid rgba(24, 54, 45, 0.16);
  border-radius: 6px;
  cursor: pointer;
}

.toolbar-follow-checkbox {
  width: 14px;
  height: 14px;
  cursor: pointer;
  accent-color: var(--accent);
}

.toolbar-field-zoom {
  min-width: 186px;
}

.toolbar-zoom-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Zoom slider ─────────────────────────────────────────────────────────── */
.zoom-slider {
  appearance: none; width: 120px; height: 6px;
  background: var(--panel); border: 2px solid var(--dark);
  border-radius: 3px; outline: none; cursor: pointer;
}
.zoom-slider::-webkit-slider-thumb {
  appearance: none; width: 14px; height: 14px;
  background: var(--accent); border: 2px solid var(--dark);
  border-radius: 50%; cursor: grab;
}
.zoom-slider::-webkit-slider-thumb:active { cursor: grabbing; }
.zoom-slider::-moz-range-thumb {
  width: 14px; height: 14px;
  background: var(--accent); border: 2px solid var(--dark);
  border-radius: 50%; cursor: grab;
}
.zoom-slider::-moz-range-track  { background: transparent; border: none; }
.zoom-slider::-moz-range-progress { background-color: var(--accent); }

.zoom-display {
  font-size: 11px; font-weight: 600; color: var(--dark);
  min-width: 36px; text-align: center;
}

.length-input {
  border: 2px solid var(--dark); background: var(--panel);
  height: 28px; padding: 2px 6px; font-size: 12px;
}

.audio-input-select {
  border: 2px solid var(--dark); background: var(--panel);
  height: 28px; padding: 2px 4px; font-size: 10px; font-weight: 600;
  color: var(--dark); cursor: pointer; max-width: 220px;
}

.settings-panel {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  padding: 6px 10px;
  background: var(--beige);
  border: 2px solid var(--dark);
  flex-shrink: 0;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.settings-label {
  margin: 0;
  line-height: 1;
}

.settings-select {
  margin: 0;
}

.settings-select-compact {
  width: 74px;
}

/* ── Timeline ────────────────────────────────────────────────────────────── */
/*
  Timeline and each track row use the same split:
    .track-left  — fixed-width panel containing label + btns + acts
    .track-lane  — fills remaining space (flex:1), clip area

  The timeline mirrors this with a .timeline-spacer (same fixed width) and
  a .timeline-ruler-track that aligns directly above the clip lanes.

  Fixed left panel width:
    row-pad(8) + col-label(100) + col-gap(8) + col-btns(115) + col-gap(8) + col-acts(60) + row-pad(8) = 307px
*/

.timeline-area {
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.timeline-ruler {
  display: flex;
  flex-direction: row;
  height: 28px;
  align-items: stretch;
}

.timeline-spacer {
  width: var(--track-left-width, 397px);
  flex-shrink: 0;
  background: var(--bg, #3d4a3a);
}

.timeline-ruler-track-wrap {
  flex: 1;
  overflow-x: scroll;
  overflow-y: hidden;
  scrollbar-width: none;
  height: 100%;
  border-bottom: 2px solid var(--green);
}
.timeline-ruler-track-wrap::-webkit-scrollbar { display: none; }

.timeline-ruler-track {
  position: relative;
  height: 100%;
  min-width: 100%;
  cursor: grab;
}

.timeline-ruler-track.dragging {
  cursor: grabbing;
}

.timeline-marker {
  position: absolute;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 7px;
  color: var(--green);
  font-weight: 600;
  padding-left: 2px;
  white-space: nowrap;
}
.timeline-marker::before {
  content: '';
  width: 1px;
  height: 4px;
  background: var(--green);
}
.timeline-marker.major::before { height: 8px; }

/* ── Tracks scroll + list ────────────────────────────────────────────────── */
.tracks-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-color: var(--accent) transparent;
  scrollbar-width: thin;
}
.tracks-scroll::-webkit-scrollbar       { width: 6px; }
.tracks-scroll::-webkit-scrollbar-track { background: transparent; }
.tracks-scroll::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

.tracks {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 0 8px;
}

/* ── Track row ───────────────────────────────────────────────────────────── */
.track-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  background: var(--beige);
  border: 2px solid var(--dark);
  min-height: 48px;
  overflow: hidden;
}
.track-row.track-muted { opacity: 0.5; }

/* Fixed-width left panel: label + btns + acts */
.track-left {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--col-gap);
  padding: 4px var(--row-pad);
  flex-shrink: 0;
  width: var(--track-left-width, 397px);
  background: var(--beige);
  z-index: 10;
}

/* label */
.track-label-wrap { display: flex; align-items: center; gap: 4px; overflow: visible; width: var(--col-label); flex-shrink: 0; }

.track-icon-wrap { position: relative; flex-shrink: 0; }

.track-icon-btn {
  background: transparent; border: 1px solid transparent;
  border-radius: 3px; cursor: pointer; padding: 2px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.1s, background 0.1s;
  color: var(--dark-2);
}
.track-icon-btn svg { width: 16px; height: 16px; display: block; }
.track-icon-btn:hover { border-color: var(--border); background: rgba(0,0,0,0.06); color: var(--dark); }

.track-icon-popup {
  position: fixed; z-index: 9999;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
  background: var(--beige, #fdf6e3); border: 2px solid var(--dark, #1a1a1a);
  border-radius: 6px; padding: 6px; box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  min-width: 140px;
}
.track-icon-cell {
  background: transparent; border: 1px solid transparent;
  border-radius: 4px; cursor: pointer; padding: 6px;
  transition: background 0.1s, border-color 0.1s;
  display: flex; align-items: center; justify-content: center;
  color: var(--dark-2);
}
.track-icon-cell svg { width: 18px; height: 18px; display: block; }
.track-icon-cell:hover { background: rgba(0,0,0,0.07); border-color: var(--border); color: var(--dark); }
.track-icon-cell.selected { background: var(--accent); border-color: var(--accent); color: #fff; }

.track-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase; color: var(--dark);
  cursor: text; outline: none;
  border: 1px solid transparent; border-radius: 2px;
  padding: 2px 3px; width: 100%;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track-label:focus { border-color: var(--accent); background: #fff8ee; }

/* button columns */
.track-btn-col { display: flex; align-items: center; gap: 3px; flex-shrink: 0; }
.track-act-col { display: flex; align-items: center; gap: 3px; flex-shrink: 0; }

.rec-btn {
  border: 2px solid var(--dark); background: var(--panel);
  font-weight: 700; cursor: pointer;
  width: 28px; height: 28px; font-size: 16px; line-height: 1;
  flex-shrink: 0; padding: 0;
}
.rec-btn.armed     { background: #c0392b; color: #fff; border-color: #c0392b; animation: blink-arm 1s step-start infinite; }
.rec-btn.recording { background: #c0392b; color: #fff; border-color: #c0392b; }

.loop-bars-popup {
  position: fixed; z-index: 9999;
  display: flex; flex-direction: column; gap: 1px;
  background: var(--beige, #fdf6e3); border: 2px solid var(--dark, #1a1a1a);
  border-radius: 5px; padding: 4px; box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.loop-bars-cell {
  background: transparent; border: 1px solid transparent;
  border-radius: 3px; cursor: pointer; padding: 3px 10px;
  font-size: 11px; font-weight: 700; color: var(--dark);
  text-align: center; transition: background 0.1s;
}
.loop-bars-cell:hover { background: rgba(0,0,0,0.08); border-color: var(--border); }
.loop-bars-cell.selected { background: #c0392b; color: #fff; border-color: #c0392b; }

@keyframes blink-arm {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.track-ctrl-btn {
  border: 2px solid var(--dark); background: var(--panel);
  font-weight: 700; cursor: pointer;
  min-width: 28px; height: 24px; font-size: 9px; padding: 0 4px;
  flex-shrink: 0;
}
.track-ctrl-btn:hover { background: var(--dark-2); color: #eafff4; }
.track-ctrl-btn.icon-btn { padding: 0; width: 24px; min-width: unset; display: flex; align-items: center; justify-content: center; }
.track-ctrl-btn.icon-btn svg { width: 12px; height: 12px; display: block; }

.mute-btn.active { background: #c8970a; color: #fff; border-color: #c8970a; }
.solo-btn.active { background: #2ecc71; color: #fff; border-color: #2ecc71; }
.del-btn:hover   { background: #c0392b !important; color: #fff; border-color: #c0392b; }

.quantize-select {
  border: 2px solid var(--dark); background: var(--panel);
  font-size: 9px; font-weight: 700; height: 24px;
  cursor: pointer; padding: 0 2px; width: 38px; color: var(--dark);
}

/* ── Lane (clip area) ────────────────────────────────────────────────────── */
.track-lane {
  flex: 1;
  position: relative;
  height: 36px;
  border: 2px solid var(--dark);
  border-left: none;
  background: #f5f0e6;
  overflow-x: scroll;
  overflow-y: hidden;
  min-width: 0;
  scrollbar-width: none;
  display: flex;
  align-items: stretch;
}
.track-lane::-webkit-scrollbar { display: none; }
.lane-muted { background: #e8e2d6; }

/* Inner content — stretches to zoom width, clips positioned inside */
.lane-content {
  position: relative;
  height: 36px;
  flex-shrink: 0;
}


/* ── Clips ───────────────────────────────────────────────────────────────── */
.clip {
  position: absolute;
  top: 0; bottom: 0;
  background: #2e5f4d;
  border: 2px solid var(--dark);
  display: flex; align-items: center;
  gap: 0; padding: 0;
  min-width: 0;
  cursor: grab;
  overflow: hidden;
}
.clip:active { cursor: grabbing; }

.clip canvas {
  height: 100%; flex: 1; margin: 0; padding: 0; display: block;
}

.clip span {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-size: 8px; color: #fff; padding: 0 4px;
  background: rgba(0,0,0,0.3); flex-shrink: 0;
}

.clip.recording-progress { min-width: 0; }

/* ── Trim handles ────────────────────────────────────────────────────────── */
.trim-handle {
  position: absolute; top: 0; bottom: 0; width: 7px;
  background: rgba(255,149,0,0.75); cursor: ew-resize; z-index: 15;
  transition: background 0.1s;
}
.trim-handle:hover { background: rgba(255,149,0,1); }
.trim-handle.left  { left: 0; }
.trim-handle.right { right: 0; }

/* ── Playhead ────────────────────────────────────────────────────────────── */
.playhead {
  position: absolute; top: 0; bottom: 0; width: 2px;
  background: var(--accent);
  pointer-events: none; z-index: 100;
}

/* ── + Add track button ──────────────────────────────────────────────────── */
.add-track-btn {
  width: 100%; height: 32px;
  border: 2px dashed var(--dark); background: transparent;
  color: var(--dark); font-size: 18px; font-weight: 700;
  cursor: pointer; letter-spacing: 2px;
  transition: background 0.14s, color 0.14s;
  flex-shrink: 0; margin-top: 2px;
}
.add-track-btn:hover {
  background: var(--accent); border-color: var(--accent);
  border-style: solid; color: #fff;
}

/* ── Context menu ────────────────────────────────────────────────────────── */
.context-menu {
  position: fixed; background: var(--panel);
  border: 2px solid var(--dark); border-radius: 3px; padding: 0;
  box-shadow: 0 6px 14px rgba(0,0,0,0.25); z-index: 2000; min-width: 130px;
}
.context-item {
  padding: 8px 14px; font-size: 11px; font-weight: 600; cursor: pointer;
  color: var(--text); background: transparent; border: none;
  display: block; width: 100%; text-align: left; text-transform: uppercase;
  transition: background 0.12s;
}
.context-item:hover { background: var(--accent); color: #fff; }

/* ── Media query ─────────────────────────────────────────────────────────── */
@media (max-width: 960px), (max-height: 760px) {
  .device { width: 100vw; height: 100vh; border-width: 3px; padding: 10px 12px; }
  .tracks-toolbar-group-view { margin-left: auto; justify-content: flex-end; }
  .toolbar-field-zoom { min-width: 0; }
}